Marco wants to sell his marble collection at a yard sale. he has 112 marbles that he wants to put in bags with 8 marbles in each bag. how many bags of will he have?

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)